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Brandi Sizemore

Week 12 Physiology Quiz

QuestionAnswer
A type of breathing characterized by gradually increasing tidal volume for several breaths followed by several breaths with gradually decreasing tidal volume is Cheyne-Stokes respiration.
The PCO2 in alveolar air is _______ blood. -less than in the systemic venous - equal to the systemic arterial -Both A and C are correct
Which of the following would have the greatest accelerating effect on the dissociation of oxygen from hemoglobin? Decreased PO2 and increased PCO2
Which muscles are used for forced expiration? Abdominal muscles and internal intercostals
The vital capacity is equal to the sum of the: inspiratory reserve volume, tidal volume, and expiratory reserve volume
If the tidal volume of a given individual is 500 ml, then the anatomical dead space is approximately ___ ml. 150
The symbol HbNCOOH- is used for carbaminohemoglobin.
Normal, quiet breathing is known as: eupnea.
If a person were skiing high up in the mountains, she might feel that she is having trouble breathing (getting enough oxygen in her blood). This is because the: lower atospheric pressure lowers the PO2 and the diffusion gradient between the blood and the atmosphere is less.
When the pressure in the lung is greater than atmospheric pressure: expiration occurs.
A drop in the body's production of carbonic anhydrase would hinder the formation of: carbonic acid.
By the time the blood leaves the lungs capillaries to return to the heart, what percentage of the blood's hemoglobin has united with oxygen. 97%
Carbon dioxide is carried in three forms in the blood. Ranking them from greatest to least amount carried, the sequence would be: bicarbonateion, carbaminohemoglobin, and dissolved in plasma
Excessive fluid in the pleural cavity would be most likely to cause decreased vital capacity
Which type of breathing is characterized by repeated sequences of deep gasps and apnea, and is usually seen in people with increased intracranial pressure? Biot's breathing
The PCO2 in the atosphere is less than in the alveolar air
During inspiration, the expansion of the lungs causes a decrease in alveolar pressure
One hundred millimeters of arterial blood contains approximately what volume percent of oxygen? 20%
The major form by which carbon dioxide is transported in the circulatory system is as bicarbonate ions.
Vital capacity is defined as the maximum volume of air that can be moved into and out of the lungs during forced respiration.
The term used to describe the volume of air exchanged during normal inspiration and expiration is tidal volume.
Which of the following is not a regulated process associated with the functioning of the respiratory system? Control of cell metabolism rate
The approximate partial pressure of oxygen at standard atmospheric pressure is about _______mm Hg. 160
Dalton law states that the partial pressure of a gas mixture of gases is ________ to the total pressure of the mixture. directly related to the concentration of that gas in the mixture and
Which of the following is not a means of transporting oxygen in the blood? Combined with the bicarbonate ion (HCO3-)
Boyle's law states that volume of a gas varies __________ with pressure at a ____________ temperature. inversely: constant
Standard atmospheric pressure is ______ mm Hg. 760
Which of the following helps determine the amount of oxygen that diffuses into the blood each minute? All of the above help determine the amount of oxygen that diffuses into the blood each minute
Which of the following constitutes total lung volume? Residual volume and vital capacity
About 98.5% of the oxygen carried by systemic arterial blood is attached to hemoglobin.
Created by: Brandi Sizemore
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